It is a black powder express cartridge designed from the ground up with a proprietary case as a "true 2 bore" cartridge, that is, in the context of the number of round balls the size of the bore needed to make 1 pound. The casing is CNC machined in a high precision, heavy duty design for chambered black powder rifles. It can accommodate a mammoth 3,500 grain (226.80 grams or a half-pound) solid brass FNTC bullet that fires at a muzzle velocity of 1,500 feet per second at 17,487 ft-lbs of energy. This makes for immense recoil, as one could imagine. The casing could also accommodate a 3,350 grain (217 grams) lead ball that fires at a muzzle velocity 1,200 feet per second.